Delete code for and references to mini-gallery and theme install bubbles.

chrome/common/extensions/extension_constants.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_COMMON_EXTENSIONS_EXTENSION_CONSTANTS_H_
 #define CHROME_COMMON_EXTENSIONS_EXTENSION_CONSTANTS_H_
 #pragma once
 
 #include <string>
 
@@ skipping 288 matching lines @@
   GURL GetWebstoreItemJsonDataURL(const std::string& extension_id);
 
   // Return the update URL used by gallery/webstore extensions/apps. The
   // |secure| parameter will be ignored if the update URL is overriden with
   // --apps-gallery-update-url.
   GURL GetWebstoreUpdateUrl(bool secure);
 
   // The greatest common prefixes of the main extensions gallery's browse and
   // download URLs.
   extern const char* kGalleryBrowsePrefix;
-
-  // Same thing for the "minigallery". The minigallery is the temporary static
-  // themes gallery that we put up when we launched themes.
-  extern const char* kMiniGalleryBrowsePrefix;
-  extern const char* kMiniGalleryDownloadPrefix;
 }  // namespace extension_urls
 
 namespace extension_filenames {
   // The name of a temporary directory to install an extension into for
   // validation before finalizing install.
   extern const char* kTempExtensionName;
 
   // The file to write our decoded images to, relative to the extension_path.
   extern const char* kDecodedImagesFilename;
 
@@ skipping 147 matching lines @@
     SYNC_PROMO_CONFIRMED_AFTER_SIGN_IN,
     SYNC_PROMO_CLOSED_TAB,
     SYNC_PROMO_CLOSED_WINDOW,
     SYNC_PROMO_BUCKET_BOUNDARY,
     SYNC_PROMO_FIRST_VALID_JS_ACTION = SYNC_PROMO_LEARN_MORE_CLICKED,
     SYNC_PROMO_LAST_VALID_JS_ACTION = SYNC_PROMO_CONFIRMED_AFTER_SIGN_IN,
   };
 } // extension_misc
 
 #endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_CONSTANTS_H_